The Robe A Story of Change

On the way to a slave auction, Marcellus Gallio, a Roman military tribune and senator's son, helps recapture Demetrius, a defiant Greek slave. At the auction site, Marcellus is reunited with Diana, his childhood love, who is now a ward of Emperor Tiberius and has been pledged in marriage to the regent Caligula. Marcellus has a longstanding feud with Caligula, and he outbids Caligula for Demetrius, who does not attempt to escape again, as he feels honor-bound to Marcellus. Demetrius becomes Marcellus' personal servant.

That evening, Caligula vengefully transfers Marcellus to far-flung Jerusalem. Diana goes to the port to say she will appeal to Tiberius on Marcellus' behalf, and the pair pledge their love and reaffirm their youthful promise to marry one day.

Accompanied by Demetrius and the centurion Paulus, Marcellus arrives in Jerusalem on the same day that Jesus, who is being hailed as the Messiah, enters the city. Demetrius feels compelled to follow Jesus and later attempts to warn him of a plot against him, but a distraught man tells Demetrius that Jesus has already been arrested.

Pontius Pilate, the governor of Judaea, informs Marcellus that he has been recalled by order of Tiberius, and gives Marcellus his last task, which is to handle the execution of three criminals—one of whom is Jesus. Marcellus wins Jesus' robe from Paulus in a dice game on Calvary, but when he uses it to shield himself from rain, he feels a sudden, intense pain. Grabbing the robe, Demetrius denounces Marcellus and the Roman Empire and frees himself, leaving a mentally unstable Marcellus, who is haunted by nightmares of the crucifixion, to report to Tiberius at Capri alone. The emperor's soothsayer says the robe must be cursed, so Tiberius gives Marcellus an imperial commission to find and destroy the robe, as well as identify the followers of Jesus. At Diana's request, Tiberius leaves her free to marry Marcellus once he has successfully completed his mission.

Marcellus eventually makes his way to Cana, whose inhabitants experienced Jesus' miracles and believe he rose from the dead. Learning from Justus, a kind weaver, that Demetrius is in the town, Marcellus confronts his former slave at an inn. Demetrius says the robe has no real power, and it is Marcellus' guilt over killing Jesus that is causing his illness. When Marcellus tries to destroy the robe anyway, he is overcome, and finds himself healed.

Pilate having ordered the arrest of all of the Christian "fanatics", Paulus sneaks into Cana with his troops. After Justus is killed by a surprise arrow, Marcellus manages to halt the attack, but Paulus informs him that Caligula has succeeded Tiberius as emperor, so Marcellus' commission is no longer valid. Paulus initially refuses Marcellus' order to leave the town, but he complies after Marcellus beats him in a duel. Jesus' apostle Peter invites Marcellus to join Demetrius and him as missionaries, and, after confessing his role in Jesus' death, Marcellus pledges his life to Jesus.

When Peter's missionary group comes to Rome, Demetrius is captured and tortured for information. Caligula asks Diana if she has heard from Marcellus, and, as she has not, tells her of Marcellus' involvement with the Christians. The Gallios' slave Marcipor, who is secretly a Christian, shows Diana where Marcellus is hiding, shortly before Marcellus leads a raid to rescue Demetrius. Demetrius is brought to the house of Senator Gallio, where Peter miraculously heals his grievous wounds. Marcellus and Demetrius attempt to flee the city, but horsemen dispatched by Caligula pick up their trail, and Marcellus gives himself up so Demetrius can escape.

At his trial, Marcellus admits to being a follower of Jesus, but denies that the Christians are plotting against Rome. He is condemned to death, unless he renews his tribune's oath of loyalty to the emperor and renounces his allegiance to Jesus; while he does the former, he refuses to do the latter. Diana stands with Marcellus and denounces Caligula, who declares that the couple will die together. As they depart the courtroom, Diana hands Jesus' robe to Marcipor, telling him to give it to Peter. Marcellus and Diana are led away to begin eternal life together in the kingdom of their true king.